Choose the correct options

1. I seldom listen to [radio|the radio].
2. Suddenly somebody gave me a light thump on [the back|a back].
3. At last [police|the police] arrived.
4. I always enjoy visiting [Red Square|the Red Square] and [Kremlin|the Kremlin].
5. ["The Uptown"|"An Uptown"] is the best place to see a movie in Washington.
6. Penguins live in [south|the south].
7. [French|The French] are famous for their culture, high fashion and cuisine.
8. There was such [a big cake|big cake] on the table that I could not believe my eyes.
9. There's so much unknown hidden in [space|the space].
10. An anonymous bidder bought [Picasso|a Picasso] at the auction yesterday.
11. I did not use to go to [ballet|the ballet], but now I am a regular visitor.
12. Do not state [obvious|the obvious].